"Figure 1. Plot of annual Pacific Northwest temperature for 1895-2010 (black dots and line), with trend lines for various starting points (colored lines). Lines sloping up indicate warming (""positive"") trends for that period. Lines sloping down indicate cooling (""negative"") trends for that period. Data were obtained from the National Climatic Data Center (NCDC, ftp://ftp.ncdc.noaa.gov) and updated following Karl et al. (1986) and Easterling et al. (1997)."
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